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4-Aminodiphenyl

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Synonyms & Trade Names
4-Aminobiphenyl, p-Aminobiphenyl, p-Aminodiphenyl, 4-Phenylaniline
CAS No.
92-67-1
RTECS No.
DU8925000
DOT ID & Guide
Formula
C₆H₅C₆H₄NH₂
Conversion
IDLH
Ca [N.D.]
See: IDLH INDEX
Exposure Limits
NIOSH REL
Ca See Appendix A
OSHA PEL
[1910.1011] See Appendix B
Measurement Methods
NIOSH P&CAM269 (II-4);
OSHA 93
See: NMAM or OSHA Methods
Physical Description
Colorless crystals with a floral odor. [Note: Turns purple on contact with air.]
Molecular Weight
169.2
Boiling Point
576°F
Melting Point
127°F
Solubility
Slight
Vapor Pressure
(227°F): 1 mmHg
Ionization Potential
?
Specific Gravity
1.16
Flash Point
?
Upper Explosive Limit
?
Lower Explosive Limit
?
Combustible Solid, but must be preheated before ignition possible.
Incompatibilities & Reactivities
Oxidized by air
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
headache, dizziness; drowsiness, dyspnea (breathing difficulty); ataxia, lassitude (weakness, exhaustion); methemoglobinemia; urinary burning; acute hemorrhagic cystitis; [potential occupational carcinogen]
Target Organs
Bladder, skin
Cancer Site
[bladder cancer]
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated/Daily
Remove:When wet or contaminated
Change:Daily
Provide:Eyewash, Quick drench
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Soap wash immediately
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

(See Appendix E)

NIOSH

At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus

Escape:


(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters. 


Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0759   MEDICAL TESTS: 0012
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health